CBWKGY External Gear Pump
2 week ago
Product details
CBWKGY External Gear Pump Full Product Introduction
1. Basic Product Overview
The CBWKGY External Gear Pump is a heavy-duty high-pressure external meshing Hydraulic gear pump developed for medium and heavy-load engineering machinery and supporting industrial hydraulic stations. As a classic fixed-displacement hydraulic power source, it is widely built into open-loop hydraulic system to deliver continuous pressurized hydraulic oil for hydraulic cylinders, hydraulic motors and various valve assemblies. Upgraded from ordinary general-purpose gear pumps, this model optimizes internal gear modulus, bearing structure and sealing configuration, boasting stronger pressure resistance and contamination resistance. It serves as a mainstream replacement Hydraulic gear pump for loaders, forklifts, sanitation trucks, cement machinery and small metallurgical equipment, adapting to long-hour continuous operation under harsh on-site conditions.
Model Interpretation
- CBW: Base series code for high-pressure external meshing gear hydraulic pump
- K: Reinforced bearing structural design
- G: High-strength alloy steel gear configuration
- Y: High-temperature resistant sealing version
This coding represents an enhanced heavy-duty variant of conventional Hydraulic gear pump, tailored for dusty, high-temperature and frequent start-stop working scenarios.
2. Core Technical Parameters
Item Specification
Product Type High-pressure External Meshing Hydraulic gear pump
Rated Working Pressure 20MPa
Peak Instantaneous Pressure 25MPa
Rotational Speed Range 900–2800rpm
Displacement Range Multiple specifications customizable
Pump Body Material Integral cast aluminum alloy / nodular cast iron optional, carburized quenched alloy steel gears
Sealing Assembly HNBR standard seals; FKM high-temperature resistant seals optional
Applicable Medium ISO VG46, VG68 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +90℃
Mounting Form SAE standard flange mounting, spline or key shaft drive
Warranty Period 1 year
3. Structure & Working Principle
The pump consists of driving gear, driven gear, pump housing, front and rear cover plates, high-precision floating side plates, heavy-duty roller bearings and multi-layer composite shaft seals. It acts as the core oil supply unit of the whole hydraulic system:
1. External power drives the main shaft to rotate, meshing driving and driven gears form negative pressure in the suction cavity, sucking hydraulic oil from the oil tank into the tooth grooves.
2. Gear rotation conveys oil along the inner wall of the pump housing to the high-pressure outlet, squeezing out pressurized oil to feed the downstream loop of the hydraulic system.
3. Built-in floating pressure compensation side plates automatically eliminate gear axial clearance under working pressure, minimizing internal leakage and maintaining high volumetric efficiency, a key optimized design compared to ordinary Hydraulic gear pump.
4. Pressurized oil drives executing components to complete mechanical actions, and return oil flows back to the oil tank to finish the circulation.
5. K-type reinforced bearings bear large radial and axial loads, avoiding shaft deflection under high pressure and prolonging the service life of gear friction pairs.
4. Core Product Advantages
1. Adopts floating side plate pressure compensation structure, effectively reducing internal leakage and keeping stable output flow under long-term high pressure, improving the overall working stability of the hydraulic system.
2. K heavy-duty bearing + G hardened gear assembly enhances impact resistance, tolerating slight impurities in hydraulic oil and reducing jamming failure frequency compared to common Hydraulic gear pump.
3. Y-type high-temperature sealing set adapts to engine adjacent installation and high ambient temperature environments, preventing oil aging and seal deterioration leakage.
4. Compact integrated structure with standardized installation dimensions, easy for direct replacement of old pumps without modifying the original hydraulic system pipelines and mounting brackets.
5. Wide matching range of displacement and installation forms, applicable to standalone hydraulic stations and machine-mounted integrated oil supply scenarios.
6. Low flow pulsation reduces vibration and noise of the whole pipeline, protecting precision valve parts in the hydraulic system.
5. Typical Application Scenarios
1. Main oil supply Hydraulic gear pump for wheel loaders, rough-terrain forklifts and road sweepers’ main working hydraulic system;
2. Hydraulic power unit for cement mixers, small mining machinery and metallurgical auxiliary equipment;
3. Supporting pump for small and medium-sized fixed hydraulic stations;
4. Equipment renovation replacement of old-type low-pressure gear pumps to upgrade the whole hydraulic system working pressure grade.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
4 year
Main Product:
hydraulic motor,
gear box,
hydraulic pump,
hydraulic valve ,
hydraulic winch,
hydraulic system